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Finding the Fourth Proportional to 404,613.80, 606,402.30 and 360,031.40

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Solution

The fourth proportional to 404,613.80, 606,402.30 and 360,031.40 is: 539,585.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,613.80 : 606,402.30 = 360,031.40 : x
  2. Step 2: Convert to fraction form
    404,613.80/606,402.30 = 360,031.40/x
  3. Step 3: Cross multiply
    404,613.80x = 606,402.30 × 360,031.40
  4. Step 4: Simplify right side
    404,613.80x = 218,323,869,032.22
  5. Step 5: Solve for x
    x = 218,323,869,032.22/404,613.80
  6. Step 6: Final answer
    x = 539,585.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.